Central Board Of Secondary Education [CBSE] — Suggestion on the result issued by board.

Sir, I am a student of class 10th.
School-Happy Valley School, (Bhagalpur)Bihar.
Candidate name-Chitra
Roll no.- 221343__
School no.-65550
Sir, I want to drawn your attention and want help on my result.I had scored 78.33% in my class 10board result, but I had dreamed about getting more than 95%in my 10class.because I had have been worked very hard for this and I was a very good student of my class, l had scored 82%in my 9th and 8th.and l hadn't done good in my preboard because I was suffering from Typhoid that time.and it's so hard for me to face this.
Sir, I have got very bad marks in my maths, science&hindi paper.I had always scored more than decent marks in these subjects in my earlier classes.but now I am not even in top 20students of my class which is very heart breaking for me.
Sir, please get details from my school about my earlier class record and help me to get out from this situation.